<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">若依后台管理系统</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          placeholder="账号"
        >
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          show-password
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon"/>
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon"/>
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img"/>
        </div>
      </el-form-item>
      <el-form-item prop="mobile" v-if="smsCodeEnabled">
        <el-input
          v-model="loginForm.mobile"
          type="text"
          auto-complete="off"
          placeholder="手机号"
        >
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/>
        </el-input>
      </el-form-item>
      <el-form-item prop="smsCode" v-if="smsCodeEnabled">
        <el-input
          v-model="loginForm.smsCode"
          auto-complete="off"
          placeholder="手机号验证码"
          type="text"
          style="width: 63%"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon"/>
        </el-input>
        <div class="login-code">
          <el-button size="medium" style="height: 38px;" :disabled="isSend" @click="getSmsCode">{{codeName}}</el-button>
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2022 ruoyi.vip All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import {getCodeImg, getSmsCode} from "@/api/login";
import Cookies from "js-cookie";
import {encrypt, decrypt} from '@/utils/jsencrypt'

export default {
  name: "Login",
  data() {
    let acceptMobileValidator = (rule, value, callBack) => {
      const reg = /^[1][3,4,5,6,7,8,9][0-9]{9}$/
      if (value) {
        if (!reg.test(value)) {
          callBack("请输入正确的手机号码");
        } else {
          this.isSend = false
          callBack();
        }
      } else {
        callBack();
      }
    };
    return {
      codeUrl: "",
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        mobile: "",
        smsCode: "",
        uuid: ""
      },

      // 手机验证码部分
      isSend: true,  //禁用
      codeName: "发送验证码",
      totalTime: 60, //一般是60
      timer:'', //定时器

      loginRules: {
        username: [
          {required: true, trigger: "blur", message: "请输入您的账号"}
        ],
        password: [
          {required: true, trigger: "blur", message: "请输入您的密码"}
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }],
        mobile: [
          {required: true, trigger: "blur", message: "请输入您的手机号"},
          {validator: acceptMobileValidator, trigger: ["blur", "change"]}
        ],
        smsCode: [
          {required: true, trigger: "blur", message: "请输入您的手机验证码"}
        ],
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      smsCodeEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined,
      //sso-ticket-key
      ticket: undefined,
      backUrl: undefined
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
        this.ticket = route.query && route.query.ticket;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        this.smsCodeEnabled = res.smsCodeEnabled === undefined ? true : res.smsCodeEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getSmsCode(){
      this.isSend = true
      const params = {"mobile": this.loginForm.mobile}
      getSmsCode(params)
      this.codeName = this.totalTime + 's后重新发送'
      this.timer = setInterval(() => {
        this.totalTime--
        this.codeName = this.totalTime + 's后重新发送'
        if (this.totalTime < 0) {
          clearInterval(this.timer)
          this.codeName = '重新发送验证码'
          this.totalTime = 10
          this.isSend = false
        }
      }, 1000)
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, {expires: 30});
            Cookies.set("password", encrypt(this.loginForm.password), {expires: 30});
            Cookies.set('rememberMe', this.loginForm.rememberMe, {expires: 30});
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          const loginParams = JSON.parse(JSON.stringify(this.loginForm))
          loginParams.password = encrypt(this.loginForm.password)
          this.$store.dispatch("Login", loginParams).then(() => {
            this.$router.push({path: this.redirect || "/"}).catch(() => {
            });
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    },
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 500px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}
</style>
